Motive Powers and Their Practical Selection |
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Página 15
In any engine or motor this term is applied to the REAL power of the machine ,
namely , that which is given off at the shaft or the pulley - wheel , and this is
naturally less than the work that is done in the cylinder of the engine , which has
had to ...
In any engine or motor this term is applied to the REAL power of the machine ,
namely , that which is given off at the shaft or the pulley - wheel , and this is
naturally less than the work that is done in the cylinder of the engine , which has
had to ...
Página 21
With these machines men may raise : One man - 1 , 000 imperial gallons per
hour 15 feet high . Cost of machine being £13 — $ 65 . 750 imperial gallons per
hour 30 feet high . Cost of machine being £18 — $ 90 . Two men — 1 , 500
imperial ...
With these machines men may raise : One man - 1 , 000 imperial gallons per
hour 15 feet high . Cost of machine being £13 — $ 65 . 750 imperial gallons per
hour 30 feet high . Cost of machine being £18 — $ 90 . Two men — 1 , 500
imperial ...
Página 22
The economy of employing the same labour in directing the operations of a
machine , rather than in actually operating it , may be considered thus : It is a
question of the value of the efforts of the man and machine combined compared
with the ...
The economy of employing the same labour in directing the operations of a
machine , rather than in actually operating it , may be considered thus : It is a
question of the value of the efforts of the man and machine combined compared
with the ...
Página 23
Reginald Pelham Bolton. CHAPTER VII . ANIMAL POWER . The power of
animals in comparison with machinery is as follows : i Machine effective horse -
power = 33 , 000 ft . - lbs . per min . A good horse working 8 hrs . per day = 21 ,
000 " An ...
Reginald Pelham Bolton. CHAPTER VII . ANIMAL POWER . The power of
animals in comparison with machinery is as follows : i Machine effective horse -
power = 33 , 000 ft . - lbs . per min . A good horse working 8 hrs . per day = 21 ,
000 " An ...
Página 24
The impetus of the machine will otherwise carry the pole against them and cause
an accident by the sudden stoppage of the machinery , or by frightening the
animals . The pulley upon the driven shaft will be proportioned to the speed
required ...
The impetus of the machine will otherwise carry the pole against them and cause
an accident by the sudden stoppage of the machinery , or by frightening the
animals . The pulley upon the driven shaft will be proportioned to the speed
required ...
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adopted advantage amount apparatus arranged average boiler calculation cent CHAPTER chimney coal comparative compound condensation consideration construction cost Crown 8vo cubic feet cylinder diameter direct double driving dynamo economical effective horse-power efficiency electric employed engine equal exhaust fall figures fire foot force fuel furnace gallons give given grate head heat heating surface horizontal Horse hour Illustrations increased indicated horse-power iron known latter length less Load machine material Maximum means Minute motor naturally necessary obtained ordinary pipe plates portable practice pressure proper proportions pump quantity shaft single sizes space speed square inch steam Stroke suited supply taken tions tubes turbine turn unit usually valve vaporizer varies various vertical volts Watts weight wheel wide Woodcuts
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Información bibliográfica
| Título | Motive Powers and Their Practical Selection |
| Autor | Reginald Pelham Bolton |
| Editor | Longmans, Green, and Company, 1894 |
| Procedencia del original | Universidad de Wisconsin - Madison |
| Digitalizado | 16 Ago. 2007 |
| Largo | 257 páginas |
| Exportar cita | BiBTeX EndNote RefMan |